Platinum 660

The most popular member of the Seasonic Platinum product line is well known for its stability and reliable performance. This unit achieves extremely high power conversion efficiency with unbelievably tight (2%) voltage regulation. Like all Platinum series units, the Platinum 660 also comes outfitted with fully modular cables that offer flexibility during system build. The Seasonic patented Hybrid Silent Fan Control can be personalized with the help of a toggle switch, which allows users to select between the S2FC control (without Fanless Mode) and the S3FC fan control (including Fanless Mode). This power supply is a true definition of what genuine premium power supplies should be.

80 PLUS®Platinum

The higher the level of efficiency of the power supply, the less power gets wasted in the form of excess heat . The 80 PLUS® Platinum certification guarantees greater than 90 %, 92 % and 89 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. The Seasonic Platinum Series represents the highest level of technology and efficiency achievement of Sea Sonic during its 40 years of commitment to engineering excellence.

Sanyo Denki Fan

The world-renowned Sanyo Denki ball bearing fans are made of the highest quality components to ensure ultra-low noise performance. The fan’s perfect balance and even rotations are achieved via the use of spoon-shaped, high-density plastic fan blades that are finished off with smoothed leading edges. Sanyo Denki fans are known for their strict tolerance ball bearings and precision copper axels. Instead of the industry standard of two balancing points they use three points to strengthen the mount and further stabilize the blade.

Benefits of this design

Reduced noise without increase in temperature;

Extended fan life due to the reduced number of fan rotations;

Optimized heat dissipation at all times;

Unsurpassed silent performance in Fanless Mode.

Additionally, there is a switch at the back of the power supply which allows users to customize their cooling needs by selecting between the Seasonic S2FC (fan control without Fanless Mode) and the S3FC (fan control including Fanless Mode).

Double Ball Bearing Fan

These durable power supply fans play an important part in the temperature control of the entire system by not only keeping themselves cool but also by removing warm air from inside the computer case. Coupled with Sea Sonic’s fan control circuit, double ball bearing fans are great performers, relatively quiet and have a very long life span.

DC to DC Converter Design

The step down DC to DC converter design allows the power supply to be able to serve system components with various voltage needs. Not only is it a flexible, clean voltage conversion solution but it also maximizes the 12 V DC rail output, delivers superior dynamic response and , ultimately, provides for greater system stability.

Stable Voltage Regulation (2 %)

Improved voltage regulation stays well within Intel’s specifications to ensure smooth operation and protect all system components.

Specifications are subject to change without prior notice.
Note: Since the beginning of 2015, Seasonic has implemented changes in its retail box design and modular cables are now packed in a black cardboard box.

Platinum 660

AC Input

Voltage: 100 V - 240 V

Current: 8.5 - 4 A

Frequency: 50 Hz - 60 Hz

DC Output

Rail

+3.3 V

+5 V

+12 V

-12 V

+5 VSB

Maximum Power

25 A

25 A

55 A

0.5 A

3 A

125 W

660 W

6 W

15 W

Total continuous power

660 W

Platinum 660 Technical Specifications

80PLUS®

Platinum

Form Factor

Intel ATX 12 V

Dimensions

150 mm (W) x 160 mm (L) x 86 mm (H)

Fan Information

Fan Size

120 mm

Fan Control

Seasonic S3FC

Fan Bearing

Double Ball Bearing

Life Expectancy

70,000 at 40 °C, 15 % - 65 % R.H.

Cable Information

Modularity

Fully Modular

Cable type

Flat black cables

Electrical Features

Operating Temperature

40 °C

MTBF @ 25 °C, excl. fan

150,000 hours

AC Input

Full Range

Protection

OPP, OVP, UVP, OCP, OTP, SCP

Safety and Environmental

Safety and EMC

cTUVus, TUV, Gost-R, CB , BSMI, CCC, CE, FCC, C-tick

Environmental Compliance

Energy Star, RoHS, WEEE, ErP Lot 6, REACH

Warranty

7 Years

Packaging information

Units per carton

4

Individual carton size

330 (L) x 130 (W) x 195 (H) mm

Shipping carton size

545 (L) x 215 (W) x 360 (H) mm

Specifications are subject to change without prior notice.

Connector

Connector Count

Lengths

1

610 mm - modular

1
1

650 mm - 8/4 pins modular
650 mm - 8 pins modular

4

600 mm - modular

10

400 mm + 120 mm + 120 mm + 120 mm - modular
300 mm + 120 mm - modular

5

400 mm + 120 mm + 120 mm - modular
300 mm + 120 mm - modular

1

100 mm - modular

Specifications are subject to change without prior notice.

eTeknix.com | Extreme Performance

July 29, 2014

Seasonic’s Platinum 660 demonstrates exactly why Seasonic are industry-leaders in the power supply market. This power supply has it all and if you’re serious about getting high efficiency and good quality power then look no further than the Seasonic Platinum 660. With a 7 year warranty this is not just a power supply but a long term investment that you’re unlikely to need to upgrade for a very long time.”

PC-eXPerience | PC-Experience Technology Award in Gold

February 26, 2013

HardOCP | Editor’s choice

February 4, 2013

“…probably the best power supply we have reviewed overall. The PLATINUM-660 posts the best voltage regulation we have ever seen, close to the best efficiency we have ever seen, it is for all intents and purposes is silent compared to other components in a system, has outstanding DC Output Quality, absolutely excellent build quality, and even posts better Transient Load responses than we have seen in a long time from a unit of such a capacity. Perhaps the only way the Platinum-660 gets better is if Seasonic was giving these away! ”